There are many reasons why mobile phones squeak. Take Huawei's mobile phone as an example, it may be that the speaker of the device is faulty, such as the speaker is flooded and needs to contact after-sales maintenance; There may be audio in the background of the mobile phone. You can turn on the background and turn off the player.

Wifi connection problem

Huawei p40Pro can't connect to wifi. You can open the settings page, enter the wifi list, delete the wifi password, and then reconnect.

Screen time management

Huawei p40Pro supports the function of "screen time management". You can check the usage of the mobile phone for a period of time, open the settings page, click "Use the mobile phone healthily" and select "Screen Time Management" to limit the usage time of the mobile phone.

Desktop gadget

Huawei p40Pro can use desktop gadgets, turn on the phone, hold the desktop with two fingers, click gadgets, and select gadgets such as weather and time.

4K60fps shooting

Huawei p40Pro supports 4K60fps shooting, and you can adjust the parameters on the camera settings page.